Thirds to william feeneyand arthur coe



(N Model.) 0 SANDPORD.

LATCH AND LOOK COMBINED. No. 429,322. Patented June 3, 1890.

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UNITE STATES ATENT OFFIC CHARLES SANDFORD, OF MADOC, ONTARIO, CANADA, ASSIGNOR OF TWO- THIRDS TO WILLIAM FEENEY AND ARTHUR OOE, BOTH OF SAME PLACE.

LATCH AND LOCK COMBINED.

SPECIFICATION forming part of Letters Patent No. 429,322, dated June 3, 1890.

Application filed April 22, 1889.

T at whom it may concern.-

Be it known that 1, CHARLES SANDFORD, of Madoc,in the Province of Ontario, Dominion of Canada, have invented certain new and useful Improvements in a Combined Latch and Look and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part hereof.

[0 My invention, which will be hereinafter fully set forth and claimed, relates to that class of combined latch and lock in which the bolt or latch acts by force of gravity.

The object of my invention is the construction of a combined latch and lock that shall act without springs, is easily and cheaply manufactured, and affords ample security.

Figure l is an elevation of my improved rim-lock, showing the latch-bolt shot locked 2 o and night-latch ed, the night-latch being'shown separately in perspective. Fig. 2 is a similar elevation showing the latch-bolt unlocked and retracted and the night-latch 01f. Fig. 3 is a separate perspective view of the gravity latch- 2 5 bolt of the same, also thelug on the face-plate to operate the head of the latch-bolt. Fig. 4 is a separate perspective view of the latchlever of the same. .Fig. 5 is a separate perspective View of the tumblers of the same.

Fig. 6 is an elevation of a mortise-lock operated by a thumb-latch and in which tumblers are omitted, but may be used. Fig. 7 is a vertical transverse section on line a; m, Fig. 6.

A a is the casing of the rim-lock, and B is 3 5 the latch-bolt. The latch-bolt has at its lower part alatch-head 19, adapted to project through a slot in the front rim of the casing, is pivoted near the front rim, near its upper end, through an eye I) by a pin 0 to the casing,

provided at little distance from said eye with a lug Z)", projecting from its sunk face and having a lower square shoulder, lower down with an elongated slot b', through which projects the pin or post 0, which limits the action of the bolt, and to which the case-cover may be screwed. It is further provided opposite the latch-head b with a square-ended elongated slot 17, having in its lower edge a square notch 12 and a square-shouldered recess b on both sides of the tail end. The up- Serial No. 308,228- (No model.)

per part of said latch is made thin to allow the latch-lever to sweep over its face, while the lower part is made thick and heavy, and the rear or tail side made longer and heavier than the front side, so as to cause it to have a tendency to project the latch-head. The outline of the lower edge of the latch is curved to clear the key. The upper edge if of said latch-bolt is made square and for a short length parallel to the upper rim of the casing when the bolt is in its normal or lowermost position.

D is the latch-lever, provided with a hub and facing d, working in the casing and having a square eye adapted to engage and be fettered by the square knob-spindle S, its free end sweeping the recessed face of the upper part of the latch-bolt and adapted to engage the lower shoulder of the lug b".

E E are two tumblers having square ends a, connected by a pin E, passing through and working in the slot 19 of the latch-bolt, and having square projections or lugs e fitting the notch b Their cam ends 2 are adapted to be operated by the cam of the key, and they may be varied to suit different cam combinations. The length of the tumblers is such that when the-projection e is dead on the square rear shoulder of the latch they butt against the rear rim of the casing and prevent the latch from being retracted. A larger number of tumblers may be used.

F is the night-latch, consisting of a doubleslotted slide having a finger-piece projecting through a slot f in the upper rim of the casing and adapted to slide snugly upon the facing b and prevent the latch being lifted. The face of the latch-head b may take the usual beveled shape, or its upper edge may be beveled from both sides and slightly 9o curved downward, and be thus worked by a beveled projection n on the face-plate H, as shown in Figs. 2 and 3.

In the mortise-lock, Figs. 6 and 7, A a is the casing; B, the latch-bolt; D','the latch- 5 lever, and G the thumb-latch replacing the knobs and square spindle. In a mortise-lock the night-latch shown in Figs. 1 and 2 is naturally impracticable, and is replaced by a segmental slide F, passing through a Ico slotted platef and the square-ended slot 79 into a slot f in the casing A. In Fig. 7 this latch is shown drawn. The lug b is omitted from the latch-bolt and a notch b" is provided instead in the upper rear edge of the same, which is engaged by the tip of the latch-lever D, which is pivoted at the other end by the pin (1 and operated by the thumblatch G, which passes through slots in the casing. This mode of operating the latchbolt is, however, not essential to mortiselocks, which may be constructed in that respect as shown in Figs. 1 and 2, the thumblatch being only used in cheap locks. Tumblers may also be used in mortise-locks, as shown in Figs. 1 and 2, and if a large number is used the recessed rear portion of the latchbolt may be omitted, as shown in Fig. (3.

The lock operates as follows: The latchbolt B or B, having its pivotal support high up above and on one side (toward the front) of the center of gravity, has a tendency to swing toward the front and project the latchhead when at. rest or in its normal position, being limited in its movement by the post 0 and the slot 11; By turning the knob or knob-spindle the latch-lever D is lifted and bearsagainst the lug b", lifting the rear portion of the latch-bolt and swinging the same backward, thus retracting the latch-head, as shown in Fig. 2. \Vhen the bolt is in its normal position, or shot, the night-latch F may be slid forward over the face If, thus preventing the bolt being lifted and retracted. Further, when the bolt is shot and the tumblers E are in the position shown in dotted lines in Fig. 1, the projections e engaging the notch b the key K may be inserted and turned from left to right, thereby lifting the tumblers and freeing the projections e from their engagement with the notch and drawing them rearward against the rear rim of the lock-case and dropping them so that the projections e engage the rear corner of the bolt.

I claim as my invention 1. In a combined latch and lock, the combination of a casing having studs 0 and O, a latch-bolt B, pivoted at its upper forward end by the eye 1) upon the stud O, and having an elongated slot b engaging the stud C, limiting the action of said bolt, also square-ended elongated slot 21, opposite the head I), with the notch b and square-ended shoulders, and means for engagement by the latch-lever, a latch-lever adapted to engage the upper rearward part of the latch-bolt, and the tumblers E, having square projections 6, adapted to engage the slotlf' and notch b substantially as set forth.

2. In a combined latch and lock, the combination of a casing having studs 0 and 0',

a latclnbolt B, having a latch-head b, eye b, elongated slot 11', means for engagement by the latclrlever and upper flat face b adapted for engagement by the night-latch, a nightlatch F, adapt-ed to engage the facing b and a latch-lever adapted to engage the latch-bolt, substantially as set forth.

3. In a combined latch and lock, the combination of the casing A (0, having studs C C, a latch-bolt B, having latch-head I), eye Z), lug I), and slot b, latch-lever D, having facing (l, pivoted in the casing and adapted to engage a spindle, and its free end engaging the high", and spindle S, engaging the eye in said lever, substantially as set forth.

4. In a combined latch and lock, the combination of the casingAa, having studs 0 C, a latch-bolt B, having latch-head 1), eye 1), lug 1)", slot 1/, slot 12", notch If, and recess 11, latch-lever D, with facing (Z, adapted to engage a spindle, and the free end adapted to engage the lug l)", spindle S, engaging the eye in said lever, tumbler E, having projections e, engaging the slot U and notch b and the key K, substantially as set forth.

5. In a combined latch and lock, the com bination of the casing A at, having studs 0 C, a latch-bolt B, having head 1), eye 1), lug l)", slot 1/, slot b', with notch b recess 7), and facing b night-latch F, adapted to slide in the casing and to engage said facing, latchlever D, with facing d, spindle S, engaging the eye of said lever, tumbler E, having projections e, engaging the slot b, and the key K, substantially as set forth.

(5. In a combined latch and lock, the latchbolt having the head I), eye 1), lug 1), slot b, slot 11"", and face 11 substantially as set forth.

7. In a combined latch and lock, the combination of a casing having studs 0 C, a latch-bolt having at its lower part a projecting latch-head and an elongated notched slot for the reception of tumblers at the rear thereof, said bolt pivoted at its upper end and at the same side as the head upon the stud C, and having atthe rear of said pivot means for engagement by an operating-lever, and having between said pivot and said tumblerslot an elongated slot engaging the stud O, limiting the swing of the bolt and adapted to engage a slide, and an operating-lever engaging the upper rear part of said bolt and being itself operatcd by suitable means, substantially as set forth.

In testimony whereof I have signed this specification in the presence of the undersigned witnesses.

CHARLES SANDFORD.

\Vitne sses:

A. F. W001), ALE. A. MCDONALD. 

